Attachment mounting means for a boring mill ram



June 29, 1965 R. A. HUHN ATTACHMENT MOUNTING MEANS FOR A BORING MILL RAMFiled Sept. 16, 1965 2 Sheets-Sheet 1 FIG-1 .III h June 29, 1965 R. A.HUHN 3,191,349

ATTACHMENT MOUNTING MEANS FOR A BORING MILL RAM Filed Sept. 16, 1963 2Sheets-Sheet 2 FIG-2 INVENTOR.

RAYMOND A.. HUHN 2 ATTORNEYS United States Patent 3,191,349 ATTACHMENTMOUNTING MEANS FOR A BORING MILL RAM RaymondA. Huhn, Cincinnati, Ohio,assignor to Setco glltliustries, Inc., Cincinnati, Ohio, a corporationof Filed Sept. 16, 1963, Ser. No. 309,213 8 Claims. (Cl. 51241) Thisinvention relates to an adapter and more particularly to an adapter forassociation with the ram of a boring mill for securely and accuratelymounting various types of power tools to the forwardend of the ram.

An object of the invention is to provide simple yet highly efficientmeans for enabling various types of tools to besecured to and accuratelyaligned with the forward end of a boring mill ram.

Heretofore it has been the practice to mount tools, such as, by way ofexample, grinders, or the like to the forward end of a ram, and to drivesuch tools from a suitable source of power mounted at the opposite endof the ram and applied to the tool by means of an elongate shaft ordrive member extending axially through the ram. Such devices, besidesbeing cumbersome and expensive are ineflicient, costly to operate andmaintain. A prime object of the present invention is to provide simpleyet highly effective means for enabling a tool such as, by way ofexample, a grinder, or the like, to be rigidly though releasablyanchored to the forward end of a .ram in such a manner as to accuratelymount the tool relative to the axis of the ram and for enabling the toolto be driven by its own independent power source, viz, an electricmotor.

In those instances wherein tools such as, byway of example, a grinder,has been powered by means of a drive shaft extending throughout thelength of a ram, it has been difficult, if not impossible, from apractical stand point, to impart sufficiently high rotational speeds tothe grinding wheel.

The adapter means of the present invention enables a tool such as agrinder to be rigidly mounted to the forward end of'a boring mill andfor enabling the grinder to be operated at any desired rotational speedby means of a belt or chain drive from a motor which is secured to andcarried by, and which in fact forms an element of the tool which issecured to the ram via the adapter.

Another object of the invention is to provide a ram conversion meanswhich facilitates and expedites accurate mounting of various tools uponthe end of the ram, withvout sacrificing needed rigidity and durabilityof the resultant assembly. 1

A further object of the invention is to provide an improved and highlyefiicient ram conversion means which is simple and inexpensive tomanufacture and apply to existing ram assemblies. p

The foregoing and other objects are attained by the meansdescribedherein and disclosed in the accompanying drawings, in which:

FIG. 1 is an exploded perspective view showing a grinder attachment andthe improved means of the invention for accurately and rigidly mountingthe attachment upon the head end of a boring mill ram.

FIG. 2' is anenlarged cross-sectional view taken along the ram axisshowing a grinder attachment mounting pad mounted upon the ram.

The present invention isdirected to simple yet highly effective means toefliciently utilize the ram of a boring mill for the performance ofadditional machining operations, other than those machining operationsusually performed by such rams, on work clamped to or on the bed of aboring mill. By providing proper means for mount- Patented June 29, 1965"ice ing various common tools upon the head end of a boring mill ram,the boring mill can be used very effectively to perform many variedmachining operations with great accuracy and dispatch. It is a primaryobject of the present invention to provide such mounting means, wherebyvarious machine operations may be effectively and efficiently executedusing the boring mill ram as the support for such tools.

In the present disclosure, an example, is given for the effectivemounting of 'a tool, to wit, a motor-driven grinder; however, it shouldbe clearly understood that tools other than a grinder may be mountedupon the ram in like-fashion for the performance of othermachineoperations.

With reference to the drawings, D indicates the lower or head end of aconventional boring mill ram which as usual may be inclined at differentangles and reciprocated at selected speeds and distances along its majoraxis G,

said face a rigid flat adapter plate or sub-plate A, said plate beingaccurately machined to fiatwise abut the ram end face. A pilot stud Bupon plate A is adapted to snugly fit into socket C, for accuratelylocating the plate upon the ram end, the pilot stud being preferablyintegral with plate A.

At the four corners or at other suitable locations, plate A may beprovided with tapped holes T to receive screws V. for detachablysecuring against the nether face of plate A the mounting pad L, whichmay be an integral element of an L-shaped housing P-Q of a grindingwheel unit comprising the abrasive wheel W and its electric drivingmotor Y. The character Z indicates a guard to covera driving belttrained over a pulley (not shown) on the lower end of the driving motorshaft, and arranged to drive a second pulley fixed upon the upper end ofthev grinding wheel shaft journalled in bearing housing X.

Attention is now directed to the fact that mounting pad L, which may beintegral with housing part P, includes a locating stud N upstandingthereon, the latter being adapted to snugly fit within the cylindricalbore K of pilot stud B. Bore K is concentric with stud B,

"in the tapped holes T of the adapter plate A, whereby pad L may bedetachably secured in flatwise relation against the nether face of theadapter plate.

' The characters S denote lifting lugs' fixed at S1 upon opposite edgesof pad L, whereas at R is indicated an eye bolt on housing portion Q,the eye bolt and lugs being provided as means to accommodate hooks of acrane or hoist chain whereby the grinder unit may be lifted intoposition for attachment to the ram by Way of the adapter or sub-plate A.It should be appreciated that in many instances the working tool (inthis case the grinder unit) may be quite large and heavy so as' torequire the services of a hoist or crane for liftingit to case anddispatch, utilizing a minimum of time and labor. No tedious adjusting ofthe tool is required, and the conversion means never requires servicingor repairs.

Due to the simplicity of the conversion means, manufacture thereof isnot only inexpensive but is attended with great durability and accuracyin machining. It is moreover compact and highly resistant to damage orinjury under severe service conditions. i

It is to be understood that various modifications and changes may bemade in the structural details of the device, within the scope of theappended claims, without departing from the spirit of the invention.

What is claimed is:

1. The combination of an axially reciprocable boring mill ram having ahead end face including a socket axially aligned with the ram axis, saidend face being in a plane normal to the ram axis and having formedtherein about the socket a plurality of tapped holes for receivinganchor screws, a flat adapter plate having apertures therein to registerwith the tapped holes of the ram end face, and anchor screwsaccommodated by said plate apertures for anchorage in the tapped holesof the ram face, to detachably secure the adapter plate in flatwisecontact upon the ram end face, an axially bored pilot stud upstandingupon the adapter plate for close fitting accommodation by the socket ofthe ram face, with the axis of the pilot stud bore in alignment with thesocket axis, the adapter plate having a flat nether face in which thepilot stud bore is exposed, and having further a group of tapped holesspaced from the apertures aforesaid and located near the perimeter ofthe adapter plate, a plurality of tool unit suspension screws removablyreceivable by the tapped holes of the adapter plate, and a tool unitincluding a fiat mounting pad having apertures therein registrable withthe tapped holes of the adapter .plate, the last mentioned tapped holesand apertures being receptive of the unit suspension screws for holdingthe mounting pad in flatwise contact against the nether face of theadapter plate, and an upstanding locating stud on the mounting padclosely accommodated by the pilot stud bore of the adapter plate, withthe axis of the pilot stud bore coin ciding with the axis of themounting pad locating stud, whereby the mounting pad and the tool unitassociated therewith are rigidly suspended from the adapter plate andthe adapter plate is in turn rigidly suspended from the ram end face inprecision relationship determined by the pilot elements aforesaid.

2. The combination as set forth in claim 1,- wherein the tool unitincludes independent power drive means.

3. The combination of an axially reciprocable boring mill ram having ahead end face including a socket axially aligned with the ram axis, saidend face being in a plane normal to the ram axis and having formedtherein about the socketa plurality of tapped holes for receiving anchorscrews, a flat adapter plate having apertures therein to register withthe tapped holes of the ram end face, and anchor screws accommodated bysaid plate apertures for anchorage in the tapped holes of the ram face,to detachably secure the adapter plate in flatwise contact upon the ramend face, an axially bored pilot stud upstanding upon the adapter platefor close fitting accommodation by the socket of the ram face, with theaxis of the pilot stud bore in exact alignment with the socket axis, theadapter plate having a flat nether face in which the pilot stud bore isexposed, and having further a group of tapped holes spaced from theapertures aforesaid, a plurality of tool unit suspension screwsremovably receivable by the tapped holes of the adapter plate, anda toolunit including a motor-driven cutting'wheel, said unit comprising a flatmounting pad having apertures therein registrable with the tapped holesof the adapter plate, the last mentioned tapped holes and aperturesbeing receptive of the unit suspension screws for detachably holding themounting pad in flatwise contact against the nether face of the adapterplate, and an upstanding locating stud on the mounting pad closelyaccommodated by the pilot stud bore of the adapter plate, with the axisof the pilot stud bore coinciding with the axis of the mounting padlocating stud, whereby the mounting pad and the tool unit associatedtherewith are rigidly suspended from the adapter plate and the adapterplate is in turn rigidly suspended from the ram end face in precisionrelationship determined by the pilot elements aforesaid.

4. The combination as set forth in claim 3, wherein the tool unitincludes means for lifting and suspending the unit by a hoist.

5. The combination of an axially reciprocable boring mill ram having ahead end face including a socket whose axis is parallel to the axis ofthe ram, said end face being in a plane normal to the ram axis, a fiatadapter plate including an axially bored pilot stud upstanding upon saidplate for close fitting accommodation by the socket of the ram face,with the axis of the pilot stud in exact alignment with the socket axis,the adapter plate having a flat upper face and a flat nether face inwhich latter face the pilot stud bore is exposed, means for rigidly butdetachably securing the upper'face of the adapter plate in flatwisecontact against the end face of the ram, a tool unit comprising a flatmounting pad having an upper face, and a locating stud upstanding uponsaid upper face of the pad, said pad stud being closely receivable inthe pilot stud bore of the adapter plate, with the axis of the pilotstud bore coinciding with the axis of the mounting pad locating stud,and means for rigidly but detachably securmotor drive therefor mountedupon said unit.

'7. The combination of an axially reciprocable boring mill ram having ahead end face disposedin a plane normal to the ram axis, a fiat adapterplate having opposite faces, and pilot means associated with the ram andthe adapter plate to enforce repeated coincidence of the ram face andsaid plate when the plate is applied to the ram face, means for rigidlybut detachably securing one face of the adapter plate in flatwisecontact against the end face of the ram, and a tool unit comprising aflat mounting pad having an upper face, pilot means on the mounting padand adapter plate for enforcing repeated coincidence of the mounting padand adapter plate when the pad is applied to the adapter plate, andmeans for rigidly but detachably securing the upper face of the mountingpad in flatwise contact with the remaining face of the adapter plate.

8. The combination as set forth in claim 7, wherein the securing meansfor attaching the mounting pad to the adapter plate serves to releasethe tool unit from said adapter plate while leaving said adapter plateattached to the ram end.

References (Iitetl by the Examiner UNITED STATES PATENTS 'LESTER M.SWINGLE, Primary Examiner.

1. THE COMBINATION OF AN AXIALLY RECIPROCABLE BORING MILL RAM HAVING AHEAD END FACE INCLUDING A SOCKET AXIALLY ALIGNED WITH THE RAM AXIS, SAIDEND FACE BEING A PLANE NORMAL TO THE RAM AXIS AND HAVING FORMED THEREINABOUT THE SOCKET A PLURALITY OF TAPPED HOLES FOR RECEIVING ANCHORSCREWS, A FLAT ADAPTER PLATE HAVING FORMED THEREIN TO REGISTER WITH THETAPPED HOLES OF THE RAM END FACE, AND ANCHOR SCREWS ACCOMMODATED BY SAIDPLATE APERTURES FOR ANCHORAGE IN THE TAPPED HOLES OF THE RAM FACE, TODETACHABLY SECURE THE ADAPTER PLATE IN FLATWISE CONTACT UPON THE RAM ENDFACE, AND AXIALLY BORED PILOT STUD UPSTANDING UPON THE ADAPTER PLATE FORCLOSE FITTING ACCOMMODATION BY THE SOCKET OF THE RAM FACE, WITH THE AXISOF THE PILOT STUD BORE IN ALIGNMENT WITH THE SOCKET AXIS, THE ADAPTERPLATE HAVING A FLAT NETHER FACE IN WHICH THE PILOT STUD BORE IS EXPOSED,AND HAVING FURTHER A GROUP OF TAPPED HOLES SPACED FROM THE APERTURESAFORESAID AND LOCATED NEAR THE PERIMETER OF THE ADAPTER PLATE, APLURALITY OF TOOL UNIT SUSPENSION SCREWS REMOVABLY RECEIVABLE BY THETAPPED HOLES OF THE ADAPTER PLATE, AND A TOOL UNIT INCLUDING A FLATMOUNTING PAD HAVING APERTURES THEREIN REGISTRABLE WITH THE TAPPED HOLESOF THE ADAPTER PLATE, THE LAST MENTIONED TAPPED HOLES AND APERTURESBEING RECEPTIVE OF THE UNIT SUSPENSION SCREWS FOR HOLDING THE MOUNTINGPAD IN FLATWISE CONTACT AGAINST THE NETHER FACE OF THE ADAPTER PLATE,AND AN UPSTANDING LOCATING STUD ON THE MOUNTING PAD CLOSELY ACCOMMODATEDBY THE PILOT STUD BORE OF THE ADAPTER PLATE, WITH THE AXIS OF THE PILOTSTUD BORE COINCIDING WITH THE AXIS OF THE MOUNTING PAD LOCATING STUD,WHEREBY THE MOUNTING PAD AND THE TOOL UNIT ASSOCIATED THEREWITH ARERIGIDLY SUSPENDED FROM THE ADAPTER PLATE AND THE ADAPTER PLATE IS INTURN RIGIDLY SUSPENDED FROM THE RAM END FACE IN PRECISION RELATIONSHIPDETERMINED BY THE PILOT ELEMENTS AFORESAID.